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Special Issue "Advanced Materials for Sensing Applications"

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensor Materials".

Deadline for manuscript submissions: 30 September 2021.

Special Issue Editor

Dr. Jun Young Cheong
E-Mail Website
Guest Editor
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
Interests: nanomaterials; energy; sensor; batteries; synthesis

Special Issue Information

Dear Colleagues,

Recent advances in material design, particularly in the field of nanotechnology, have triggered significant research progress. Attributed to the high surface to volume ratio, aspect ratio, and surface area arising from nanostructured materials, they are shown to exhibit unusual physicochemical properties in comparison with their bulk counterparts. Especially, due to health and environmental concerns, several sensors, ranging from gas sensors to biosensors, have actively taken place, and more improved performance was achieved when rationally designed nanostructured materials were carefully employed for sensing applications. This Special Issue of Sensors will be dedicated to summarizing and highlighting some recent research advances in employing nanostructured materials for various sensor applications, ranging from gas sensors to biosensors. Topics include, but are not limited to the following:

1) Summary of nanostructured materials that are suited for the varoius types of sensors

2) Investigation on what kinds of nanostructured materials are best suited for what type of sensor

3) Employing nanostructured materials for specific types of sensors (such as gas sensor, biosensor, pressure sensor)

4) In-depth analysis of what factors of nanostructured materials contributed to the improvement of sensor performance

Both review papers and original research articles are welcome

Dr. Jun Young Cheong
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanostructure
  • nanotechnology
  • sensor
  • detection
  • high surface area
  • 1D, 2D, 3D

Published Papers (1 paper)

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Open AccessLetter
Fast-Response Colorimetric UVC Sensor Made of a Ga2O3 Photocatalyst with a Hole Scavenger
Sensors 2021, 21(2), 387; https://doi.org/10.3390/s21020387 - 08 Jan 2021
Cited by 1 | Viewed by 462
Abstract
A fast-response colorimetric ultraviolet-C (UVC) sensor was demonstrated using a gallium oxide (Ga2O3) photocatalyst with small amounts of triethanolamine (TEOA) in methylene blue (MB) solutions and a conventional RGB photodetector. The color of the MB solution changed upon UVC [...] Read more.
A fast-response colorimetric ultraviolet-C (UVC) sensor was demonstrated using a gallium oxide (Ga2O3) photocatalyst with small amounts of triethanolamine (TEOA) in methylene blue (MB) solutions and a conventional RGB photodetector. The color of the MB solution changed upon UVC exposure, which was observed using an in situ RGB photodetector. Thereby, the UVC exposure was numerically quantified as an MB reduction rate with the R value of the photodetector, which was linearly correlated with the measured spectral absorbance using a UV-Vis spectrophotometer. Small amount of TEOA in the MB solution served as a hole scavenger, which resulted in fast MB color changes due to the enhanced charge separation. However, excessive TEOA over 5 wt.% started to block the catalytical active site on the surface of Ga2O3, prohibiting the chemical reaction between the MB molecules and catalytic sites. The proposed colorimetric UVC sensor could monitor the detrimental UVC radiation with high responsivity at a low cost. Full article
(This article belongs to the Special Issue Advanced Materials for Sensing Applications)
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